1AnyEvent::I3(3) User Contributed Perl Documentation AnyEvent::I3(3)
2
6 AnyEvent::I3 - communicate with the i3 window manager
7
9 Version 0.17
10
12 This module connects to the i3 window manager using the UNIX socket
13 based IPC interface it provides (if enabled in the configuration file).
14 You can then subscribe to events or send messages and receive their
15 replies.
16 use AnyEvent::I3 qw(:all);
18 my $i3 = i3();
20 $i3->connect->recv or die "Error connecting";
22 say "Connected to i3";
23 my $workspaces = $i3->message(TYPE_GET_WORKSPACES)->recv;
25 say "Currently, you use " . @{$workspaces} . " workspaces";
26 ...or, using the sugar methods:
28 use AnyEvent::I3;
30 my $workspaces = i3->get_workspaces->recv;
32 say "Currently, you use " . @{$workspaces} . " workspaces";
33 A somewhat more involved example which dumps the i3 layout tree
35 whenever there is a workspace event:
36 use Data::Dumper;
38 use AnyEvent;
39 use AnyEvent::I3;
40 my $i3 = i3();
42 $i3->connect->recv or die "Error connecting to i3";
44 $i3->subscribe({
46 workspace => sub {
47 $i3->get_tree->cb(sub {
48 my ($tree) = @_;
49 say "tree: " . Dumper($tree);
50 });
51 }
52 })->recv->{success} or die "Error subscribing to events";
53 AE::cv->recv
55
57 $i3 = i3([ $path ]);
58 Creates a new "AnyEvent::I3" object and returns it.
59 "path" is an optional path of the UNIX socket to connect to. It is
61 strongly advised to NOT specify this unless you're absolutely sure you
62 need it. "AnyEvent::I3" will automatically figure it out by querying
63 the running i3 instance on the current DISPLAY which is almost always
64 what you want.
65
67 $i3 = AnyEvent::I3->new([ $path ])
68 Creates a new "AnyEvent::I3" object and returns it.
69 "path" is an optional path of the UNIX socket to connect to. It is
71 strongly advised to NOT specify this unless you're absolutely sure you
72 need it. "AnyEvent::I3" will automatically figure it out by querying
73 the running i3 instance on the current DISPLAY which is almost always
74 what you want.
75 $i3->connect
77 Establishes the connection to i3. Returns an "AnyEvent::CondVar" which
78 will be triggered with a boolean (true if the connection was
79 established) as soon as the connection has been established.
80 if ($i3->connect->recv) {
82 say "Connected to i3";
83 }
84 $i3->subscribe(\%callbacks)
86 Subscribes to the given event types. This function awaits a hashref
87 with the key being the name of the event and the value being a
88 callback.
89 my %callbacks = (
91 workspace => sub { say "Workspaces changed" }
92 );
93 if ($i3->subscribe(\%callbacks)->recv->{success}) {
95 say "Successfully subscribed";
96 }
97 The special callback with name "_error" is called when the connection
99 to i3 is killed (because of a crash, exit or restart of i3 most
100 likely). You can use it to print an appropriate message and exit
101 cleanly or to try to reconnect.
102 my %callbacks = (
104 _error => sub {
105 my ($msg) = @_;
106 say "I am sorry. I am so sorry: $msg";
107 exit 1;
108 }
109 );
110 $i3->subscribe(\%callbacks)->recv;
112 $i3->message($type, $content)
114 Sends a message of the specified "type" to i3, possibly containing the
115 data structure "content" (or "content", encoded as utf8, if "content"
116 is a scalar), if specified.
117 my $reply = $i3->message(TYPE_COMMAND, "reload")->recv;
119 if ($reply->{success}) {
120 say "Configuration successfully reloaded";
121 }
122
124 These methods intend to make your scripts as beautiful as possible. All
125 of them automatically establish a connection to i3 blockingly (if it
126 does not already exist).
127 get_workspaces
129 Gets the current workspaces from i3.
130 my $ws = i3->get_workspaces->recv;
132 say Dumper($ws);
133 get_outputs
135 Gets the current outputs from i3.
136 my $outs = i3->get_outputs->recv;
138 say Dumper($outs);
139 get_tree
141 Gets the layout tree from i3 (>= v4.0).
142 my $tree = i3->get_tree->recv;
144 say Dumper($tree);
145 get_marks
147 Gets all the window identifier marks from i3 (>= v4.1).
148 my $marks = i3->get_marks->recv;
150 say Dumper($marks);
151 get_bar_config
153 Gets the bar configuration for the specific bar id from i3 (>= v4.1).
154 my $config = i3->get_bar_config($id)->recv;
156 say Dumper($config);
157 get_version
159 Gets the i3 version via IPC, with a fall-back that parses the output of
160 i3 --version (for i3 < v4.3).
161 my $version = i3->get_version()->recv;
163 say "major: " . $version->{major} . ", minor = " . $version->{minor};
164 command($content)
166 Makes i3 execute the given command
167 my $reply = i3->command("reload")->recv;
169 die "command failed" unless $reply->{success};
170
172 Michael Stapelberg, "<michael at i3wm.org>"
173
175 Please report any bugs or feature requests to "bug-anyevent-i3 at
176 rt.cpan.org", or through the web interface at
177 <http://rt.cpan.org/NoAuth/ReportBug.html?Queue=AnyEvent-I3>. I will
178 be notified, and then you'll automatically be notified of progress on
179 your bug as I make changes.
180
182 You can find documentation for this module with the perldoc command.
183 perldoc AnyEvent::I3
185 You can also look for information at:
187 • RT: CPAN's request tracker
189 <http://rt.cpan.org/NoAuth/Bugs.html?Dist=AnyEvent-I3>
191 • The i3 window manager website
193 <http://i3wm.org>
195
198 Copyright 2010-2012 Michael Stapelberg.
199 This program is free software; you can redistribute it and/or modify it
201 under the terms of either: the GNU General Public License as published
202 by the Free Software Foundation; or the Artistic License.
203 See http://dev.perl.org/licenses/ for more information.
205perl v5.32.1 2021-01-26 AnyEvent::I3(3)